(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Canonicalize the locale string

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Create a timezone object from

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Set the leniency of the parser

(PHP >= 5.4.0, PECL intl >= 2.0.0) Get last error code

(PHP 7) Get the "age" of the code point public

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get last error code on the object

(PHP 7) Check if code point has the Bidi_Mirrored property

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Set the day on which the week is deemed to start

(PHP 7) Check if code point is permissible as the first character in a Java identifier

(PHP 7) Check if code point is a base character